The Alamodome in San Antonio is hosting its fifth Final Four this weekend. Initially built for an NFL expansion team, the Alamodome doesn't have a marquee tenant yet is one of the only venues in history to host an NFL, NBA, MLB, and NHL game. Here's what you need to know: 1. The Alamodome opened in 1993 at a cost of $186 million (or $410 million when adjusted for inflation). However, unlike most stadiums, the Alamodome was built without debt, as San Antonio implemented a half-cent transportation tax before construction started. 2. The Alamodome sits on a tight plot of land between a railroad track and a highway, so architects had to build the stadium more vertically than usual. Stadium architects also eliminated all view-obstructing columns inside the venue by building a unique cable-supported truss system using steel cables fabricated in Europe and shipped to the United States. 3. The court for this year's final four was custom-built from maple hardwood sourced from Michigan. The court arrives in 381 panels, each measuring 4-by-7 feet and weighing 165 pounds. It takes the arena staff about 4 hours to assemble all the pieces. 4. The NCAA makes a lot more money by playing in a football stadium rather than a basketball arena. A 50,000-seat difference at $200 per seat translates to $10 million in additional ticket sales per game. 5. The Alamodome typically loses about $2.5 million annually, but last year, it turned a small profit ($329,000) on $20 million in revenue. The city is okay with this arrangement because it has generated billions in economic impact over 30 years. 6. San Antonio says over 100,000 people will visit the city this weekend for the Final Four, spending $50 million on hotels and generating a total economic impact of up to $400 million. P.S. If you enjoyed this breakdown, you'll love my 3x weekly newsletter. Join 130,000+ others learning about the business and money behind sports: huddleup.substack.com